Rotary dump.



No. 837,379 PATENTED DEC. 4, 1906. A. F. BLAIR & L. J. RUBB. ROTARYDUMP.

APPLIOATION FILED NOV. 27. 1905,

4 SHEETS-SHEET 1.

WITNESSES. I NVENT RS I PATENTED DEC. 4, 1906. A. F. BLAIR & L. J. ROBB.

ROTARY DUMP.

APPLICATION FILED NOV.21.1905.

4 SHEETS-SHEET 2 INVENTORS] wn'NEssEs. pbw wt P B B O R T T & Du I A L Bu A ROTARY DUMP.

APPLICATION rum) Nov. 27,1905.

4 SHBETSSHBET 3 WITNESSES.

No. 837,379. PATENTED DEC. 4, 1906. A.'P. BLAIR & L. J. ROBB.

BOTARY DUMP. APPLICATION FILED NOV. 27.19054 4 SHEETSSHBET 4- INVENTORSMr? M Q WW/(av WITNESSES.

UNITED STATES PATENT T ies.

ALLEN F. BLAIR, OF CRAF TON, AND LEWIS J. ROBB, OF PITTSBURG,PENNSYLVANIA, ASSIGNORS TO HTZYL & PA'T ERSON INCORPO- RATED, ACORPORATION PENNSYLVANIA.

ROTARY DUMP.

Specification of Letters Batent.

Patented Dec. 1906.

To all whom, it may concern/.-

Be it ,known that we, ALLEN F. BLAIR, a resident of Grafton, and LEwrsJ. Bone, a l resident of Pittsburg, in the county of Allegheny and Stateof Pennsylvania, have ini vented a new and useful Improvement in RotaryDumps; and we do here by declare the following to be a full, clear, andexact de scription thereof.

Our invention relates to rotary dumps for dumping the contents ofcoal-cars or like receptacles.

Our invention comprises the novel features hereinafter set forth andclaimed.

To enable others skilled in the art to make and use our invention, wewill describe the same more fully, referring to the accompanyingdrawings, in which Figure 1 is a plan view of our improved car-dump, inconnection with the tracks leading up thereto as well as therefrom. Fig.2 is a side view of the rotary dump, on an enlarged scale. Fig. 3 is anend view. Fig. 4 is an enlarged detail of the driving l and operatingmechanism. Fig. 5 is a detail of the stopping means. Figs. 6 and 7 aredotail views of the friction-brake, and Fig. Sis a detail of thetreadle-rail.

Like numerals indicate like parts in each of the figures.

In the drawings the numeral 2 designates a suitable platform with thetrack thereon I loading to the dump. Beyond the dump is g l he founddcsirahle to vary the speed of the l rotation of the car-support inorder to cause the inclined platform 4 with the track 5 laid thereon, bymeans of which the empty cars after being dumped pass along the track 5to 1 a suitable kick-back, from which they re-; turn and are shifted offonto the track 6, whence they may pass by gravity oil the tipple.

The car-support 7is carried hythe frame 8, j which may be constructed ofsuitable beams, sa d frame having the rollers i) mounted therein, so tosupport said ar-su )port 7. This car-support may he composed of thecircular end pieces 10, connected by the inciosing walls 1.1. Thecar-support has the plat form 12, upon which are laid the rails H, whichsupport the wheels i4 of the car 35. g Secured to the car-support areiheguard-l rails 16, which are adapted to engage the; wheels 14 of the carand prevent the displzucrl nientof thecarduring thedlunpingoperrd ion.

The car-support is provided with the receptacle or pan 1?, which isadapted to receive the coal from the Carlo when the car-support isrotated. This receptacle is composed of the curved portion 17 a and theplate 17*, supported and braced by the anglestrips 17, and is ofsufficient size to receive the contents of the car and is open at theend 18, so that when said car-support rotates the .contents of thereceptacle will be discharged therefrom, as fully hereinafter set forth.The circular end pieces 7 have the flanges 19, which are adapted toenter the grooves in the rollers 9, said flanges moving in said rollersas the car-support is rotated.

In order to rotate the car-support, a motor 23 may be employed, saidmotor having the pinion 24, which engages with the gear-wheel 25 on theshaft 26. A pinion 27 on the shaft 26 engages the gear-wheel 28 on theshaft 29, said gear-wheel normally running loosely on said shaft. Clutchmechanism 30, of any suitable form, secured to the shaft 29, is adaptedto be thrown into connection with the gear-wheel 28 to rotate the shaft29. This clutch mechanism is operated by the lever 31, which isconnected by the rod 32 to 'the slide-bar 33, ,which is connected to theclutch by the arm 34.

A gear-wheel 35 on the shaft 29 meshes with the large gear 39 on thecar-support 7. In thisnannor power is communicated from the motor to r01ate the car-support. 1t wiil it to rotate at a high speed during thefirst part of the rotation, then at a reduced speed, and "finally again.at a higher. speed as it comes around to the point of starting.cordingly we havcprovidcd the variable-speed controller 40, which is ofthe ordinary construction for controlling the speed of the motor, saidcontroller ha ving the sprocket-wheel 41, which is connected by thechain 42 with the small sprocket-wheel 43 on the shaft 29. Thisspeed-controller"is of a common construction used in connection withelectric motors, andvas we do not claim this feature we do not deem itnccessar r to illustrate it in detail.

.111 the track. 23 is the treadle-rail 4.4, which is adapted to heengaged by the tread of the wheels on one side of the oncoming car. saidea'mve rail being supp r ed by the pivotal 45, so as to e depressed andmoved forward by the action of the oncoming car. Connected to the linkis the link 46, which is connect edby the horizontal lever 47 with therod 48,

. said rod carrying a spring 49 at its forward end, into osed betweenthe abutment 50 and the co lar 51 on said rod. The rod 48 is inalinement with the rod 52, which is slidable in the hangers 53. Securedto the rod 52 is the fixed block 54, to which is connected thecrank-arm55. The'crank-arm 55 is secured to the shaft 57, and to eachend of said adapted to an age the forward wheels of the car. The shat 57engagesthe slots 59in the brackets 60, and springs 61 act to normallyshaft are secured the stops 58, which are bold said crank-arm 55 inengagement withthe wheels of the car. The crank-arm 56 is secured to themovable block 62 and to the shaft 63, and to each end of said shaft aresecured the stops 64, which are depressed by the wheels of the oncomingcar.

spring 65 is interposed between the movable lock 62 and thehanger 53/The outer end of the rod 52 has the head 66.'

Pivotedat 72 is the-bent lever 73, carrying at its upper end the idleroller 74, adapted'to ing frame 7% com rises the block 77,- pivotedbracket 79?.

to theframe, sai

block havin the strap 7 7 which acts as a guide and older for thelatch-bar 78. Secured to the .lower end of the bar 78 is the nut 78?,which has the OfiSBL' engaging the guide-stra 7 7 so as to be free tomove free y up an down thereon, but held against rotary movement. Aspring 78 is interposed between said nut 78" and the u perend of theguide-strap 77 The latch.- ar 78 passes through an opening in the upperend of the strap 77*, and at the upper end of said bar is the finger78".

A pawl 79 is pivoted to the bracket '79,

and connected to said pawl is the pin 80,

which passes through an opening in the A sprin 80 is into osed betweenthe head of sai pin and sai bracket, whereby said pawl is normallyforced inward. Below the pawl 79 is the adjustable rest or sto 81,consisting of a screw passing up throng vthe bracket 79 and forming arest for the finger 78 of the bar 78. An arm 82 connects the lever 73 tothe slide-bar 33.

The slide-bar 33 has the cam-plate 33, which is adapted tonormallyengage the upper end of t 1e pawl 83 and hold said pawl out ofengagement with the ratchet-wheel 84, held between the plates 85 and 86of the brake-wheel 87 The brake-wheel 87 is rigidly mounted on the shaft29, and the plates 85 and 86 thereof are secured together by the bolts88. The plates together form the annular outwardly-flaring seat 89,which receives the tapering inner rim of the ratchet-wheel 84. The pates bind said Wheel 84 by friction, and when the pawl is thrown intoengagement 'with said wheel said wheel acts to brake the wheel 87, aswill more fully hereinafter appear.

When our improved rotary car-dump is in operation, aloaded car is runfrom the track 3 onto the track 13 of the car-support and the wheelsengaged by the stops 58 and 64.

The lever 31 is then 0' erated to move the bar 33 and throw the c utch30 into engagement with the gearewheel 28, while at the same time thelatch-bar 78 is withdrawn from theEcar-support by the same operation.

Power is thus transmitted from the motor to rotate the car-support, andby means of the variable-speed controller the rotation begins at a highrate of speed. As the car-support rotates the contents of the car 15 aredis charged into the receptacle 17, and by the time said receptacle getsaround to the point where its contents are discharged from the opening18 the speed of the motor isreduced, so that the contents of thereceptacle 17 are discharged gradually to a chute or other receivingdevice located underneath the carsupport. After the contents have beendis charged from the receptaple 1.7 the speed of the motor increases andcarries the car-support around to its original position of startmg.During this latter period of rotation the cam 75 moves in contact withthe upper end of the lever 73 and moves said lever to the left, actingthereby to move the slide-bar 33 sufficiently to withdraw the cam-plate33 to permit the pawl 83 to drop into engagement with the ratchet-wheel84. This acts to gradually reducethe speed so as to stop the car-supportwithout a sudden jar. The

movement of the lever 73 to the left further acts through the rod 76 tomove the rocking frame 77, so as'to bring it into a substantiallyvertical position, as shown in dotted lines, Fig. 4. As said rockingframe-moves ICC IIO

into this position, the finger. 78 of the bar 78 strikes the pawl 79,and said pawl yields and then springs back over said finger, while saidfinger rests upon the rest 81. This looks the rotary support againstfurther rotation until the finger is withdrawn; but in casesaid ro tarysupport should vibrate before coming to a complete standstill it is freeto do so, as the latch-bar 78 is free to yield vertically under suchpressure. By this construction the sudden jolt in locking the rotarysupport is avoided and the strain onsame relieved. The next car is thenadvanced with its load, and when the forward wheels strike the treadlerail 44 said rail is depressed and pushed forward so as to force forwardthe rod 48. The rod 52 being in line with the rod 48 said rod 52 isadvanced and through reo- .by gravity to the kick-back.

lowered. The further advance of the loaded car pushes the empty car fromthe car-support onto the track 5, along which it moves When the loadedcar is in position on the car-support. the spring returns said rod 52 tonormal position and throws the stops 58 up into position to engage thefront wheels of the car. The operation of dumping 18 again repeated. Inthis manner with great rapidity the cars can be advanced onto thecar-support and rotated and be pushed from the car-support by theoncoming car in quick succession. By having the receptacle in theear-support to receive the contents from the car during the rotation ofthe car-support the height which the coal has to fall is greatlyreduced, and when said receptacle comes around into position to bedischarged the contents fall therefrom without unduejarring or breakingup.

WVhat we claim is 1. The combination with a suitable frame, of acylindrical rotary car-support, a receptacle on said support at itscircumference and curved to conform with the curve of said support, andmeans for discharging the material from said receptacle.

2. The combination with a suitable frame, of a cylindrical rotarycar-support, mechanism for rotating said support, a receptacle on. saidsupport at its circumference and curved to conform with the curve ofsaid support, and means for discharging the material from saidreceptacle.

3. The combination with a suitable frame, of a rotary car-support, astop adapted to enthe wheels of the car on said support, alongitudinally-movable rod to which said stop is connected, a secondlongitudinallymovable rod in the path of said first rod, and means formoving said second rod by the oncomi'ng car.

4. The combination with a suitable frame, of a rotary car-support, brakemechanism, and means for operating said brake mechanism automatimilly bythe rotation of said support.

5. The combination with a suitable frame,

lever, a cam on said support adapted to en'- gage said lever, andconnections between said lever and said brake mechanism.

' o. The combination witha suitable frame, of a rotary ear-support,brake mechanism comprising a ratchet-wheel held between the faces of awheel rigidly mounted on the power-shaft, a pawl adapted. to engage saidratchet, and means for throwing said pawl into and out of engagementwith said ratchet-wheel.

7. The combination with a suitable frame, of a rotary car-support, brakemechanism comprising a rnlelnt-wlnel held between the faces of a wheelrigidly mounted on the power-shaft, a pawl adapted to engage saidratchet, and a slidable bar having a can adapted to engage said pawl,and means for throwing said pawl into and out of engagement with saidratchet-wheel.

8. The combination with a suitable frame, of a rotary car-support, brakemechanism comprising a ratchet-wheel held between the faces of a wheelrigidly mounted on the power-shaft, a pawl adapted to engage saidratchet, a lever connected to said bar, and a cam on said car-support inthe path of said lever.

9. The combination with a suitable frame, of a rotary car-support, alatch-bar adapted to ei'igage said support, and means for throwing saidlatch-bar into engagement with said support by the rotation of same.

10. The combination with a suitable frame, of a rotary car-support, alatch-bar adapted to engage said support, a lever connected to saidlatch-bar, and a cam on said support adapted to engage said lever.

11 The combination with a suitable frame, of a rotary carsupport, alatch-bar adapted to engage said support, a rocking frame supportingsaid latch-bar, a lever connected to said frame, and a cam on saidsupport adapted to engage said lever.

12. The combination with a suitable frame, of a rotary car-support, ayielding latch-bar adapted to engage said support, a lever connect d tosaid latch-bar, and a cam on said supra rt adapted to engage said lever.

13. The combination with a suitable frame, of a rotary car-support, avcrtically-yielding latch-bar adapted to engage said support, a leverconnected to said latch-bar, and a cam on said support adapted to engagesaid lever.

14. The combination with a suitable frame, of a rotary car-support, avert' rally-yielding spring-actuated latch-bar adapted to engage saidsupport, a lever connected to said latchbar, and a cam on said supportadapted to engage said lever. v

15. The combination with a suitable frame, of a -rotary car-support, alatch-bar adapted to engage said support, a rocking frame sup portingsaid latch-bar, a spring interposed between. said rocking frame and saidbar, a lever c" nnected to said frame, and a cam on said support adaptedto engage said lever.

16. The combination with a suitable frame, of a rotary (arr-support, apawl and a rest on said support, a yielding latch-bar adapted to engagesaid pawl and rest, a lever connected to said bar, and a cam on saidsupport adapted to engage said lever.

in testimony whereof we, the said ALLEN l BLAIR-mid liuwis .l. Rona,have hereunto set our hands.

ALLEN F. BlJAlll. LEWIS J. ROBB. \Vituesses:

